Name: Andreas Ross (email_not_shown)
Date: 06/09/06-03:53:18 PM Z


Hi,

in a previous post, I reported some problems with the Eps command in Feyncalc 5 Beta1 which you fixed in Beta2. Now with the new Beta3, some issues seem to be back, for example:

in Beta3,
Calc[Eps[Momentum[p1], Momentum[q], Momentum[2 p3 + q], Momentum[S]]]
gives
Eps[Momentum[p1], Momentum[q], Momentum[2 p3 + q], Momentum[S]]

whereas in Beta2,
Calc[Eps[Momentum[p1], Momentum[q], Momentum[2 p3 + q], Momentum[S]]]
gave
-2 * Eps[Momentum[p1], Momentum[p3], Momentum[q], Momentum[S]]
which is what I would expect.

Thanks,

Andreas



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